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Frank DuWes McKinney
6b87c6c9fb0
Frank Du authored and Wes McKinney committed f2f9d8f185b
ARROW-8141: [C++] speed unpack1_32 using intrinsics API

BM_PlainDecodingBoolean benchmark shows about 1.3x to 1.7x improvements per the size
against the avx512 complier optimizations.

Signed-off-by: Frank Du <frank.du@intel.com>

Closes #6650 from jianxind/PlainDecodingBoolean-avx512-Intrinsics

Authored-by: Frank Du <frank.du@intel.com>
Signed-off-by: Wes McKinney <wesm+git@apache.org>